Excellent feedback Edward, thanks. Without tipping our hand too much this early in the trial, multiple sites has always been a big part of where we see this heading. There are pretty big challenges to deriving automatic topology from remote, we'll likely at the end of the day need a second Thunderbolt at the remote site in order to work at layer 2, which is how we identify devices. Linking the network topologies together into a single graph would make sense, probably with filters to show only certain sites if needed. The inventory view would likely have separate tabs for each site, and possibly a single 'show me everything' tab.
But even without a second thunderbolt at the remote site, some level of monitoring is certainly possible over an IPsec tunnel. It's also possible that with cooperating layer 2 equipment at the remote side we might also be able to derive some remote topology automatically.
-mike